Railway draft-rigging.



Patented Aug. 12, 1913.

2 Samus-aunar 1.`

J. OCONNOR. RAILWAY I )KAFT BIGGING. nvmonmx rmx 8521.14. m1.

MN. lllll unlllllllk.

J. P. OGONNDR.

- 311mm nam meme.

' Ar-PLIOLTION FILED 85?'1. 14, 1911. L. 1 Patented Aug. 12, 1913.

Y i SHEETS-BREST 2:

INVIHTOB John F-O'Connor WITNESBE UNITED STTES PATENT FFTCE. c

JGHN F. OCONNOB, F CHICAGOf-ILLINUISASTYR T0 W. H. MINER, OF CHICAGO,

- ILLINOIS.

RAILWAY DRAFT-BIGGIN G.

Spccineation o! Letters Patent.

Patented Aug. 12,1913.

T o aU whom. it may concern:

Be it knownthat I, JOHN F. OQoNNon, a. citizen of the United 'State-s,resldmg at Chicago, in the county of Cook and Stateof illinois, haveinvented a certain new and useful Improvement in Railway Draft- Rigging,of which thc following is aI` full, clear, concise, and exactdescription, reference being had to theaccompanying drawings, formingapart of this specificatlon.

My invention'relates to an improvement in friction draft rigging forrailway cars.

The object of my invention is to provide a friction draft rigging of asimple, elcient undstrong construction, corn osed of few parte andcapable of being c eaply manuactured, and more particu arly in which thefriction shoes may be made of relatively cheap material such as ordinaryiron cast-v ings, and at the same time be free from danger of fractureor injury under unusually heavy shocks and blows;

My invention`consists in the means employed and herein shown anddescribed to practically accomplish this object, the same being moreparticularly pointed outin the claims.'

In the accompanying drawings which form a part of this specification,Figure 1 is a side elevation, partly in centra vertical,longitudnalfsection, of a friction draft rigging embodyin my invention.Fig. 2 is a plan view. ig. 3 is a vertical longitudinal view of thegroup of friction shoes but without theother parts. Fig. 41's an endview at the line 4-4 of Fig. 3. Fig. 5 is an end view on the. line 5--5of Fig. 3. Fig. 6 is a perspective view of the group of friction shoesassembled to ether but Without the other parts., .Fig e is an unfoldedView of the outer faces of the friction shoes. Fig. 8 is an end view ofone of the intermediate friction shoes. Fig. -9 is an eleva- -tion ofone of the intermediate -riction shoes. Fig. 10 is a perspective view ofone ci the intermediate friction shoes. Fig. 11 is a plan viewy of oneofthe rear friction shoes. Fig. 12 is an elevation of one of the rearfriction shoesl Fig. 13 is a perspective view ofone of the rcar frictionshoes. Fig. 14 is an elevation of one of the frontfriction shoes. Fig.15 is a plan view of, one of the front friction shoes. Fig.' `16 is apersportive .view of neef thefront friction shoes. F ig.'17 is aperspective of the con- A nectin tlnmble.

lIn t e accompanying drawings 18 represents the center or draft sills ofthe car frame to which the stop members or cast-- ings, 19, areattached; 20 the draw-bar; 21, the'draft yoke; 22, the front follower;23, the rear follower; 24, a longitudinal movable friction shellarranged between the followers; 25, 26, sprin s longitudinally arrangedwithin the friction shell 27, the rear annular segmental wedgingfriction shoes; 28, the front annular segmental wedging friction shoes,oppositely arranged with the rear set, 27. Intermediate between the twosets of friction shoes, 27 and 28, is a third set of, friction shoes,29, therear set of shoes, 27, preferably comprising three segmentalwedginp shoes, each preferably of comparatively ess length and withshorter lateral surfaces than those of the forward set, 28, and each ofthe shoes of the rear set preferably made identical in shape and fromthe same pattern, the forward s'et of shoes, 28, preferably three innumber and preferably of eater length and with longer bearing sur acesthan the rear set, and each of the shoes of theforwardset preferablymade identical in shape and from the same pattern.V The shoes of theintermediate set of friction shoes, 29, each consists of an annularsegmental friction shoe, and the shoes of this set are referably threein number and preferably identical in sha e and made from the samepattern and eac havin the double wedging, or four inclined sur aces, 30,31, 32 and 33, the front surfaces, 30 and 31 preferably beingconsiderably longer than the rear surfaces. 32 and 33. Each of the frontshoes, 28, is` provided with an annular, internal segmental rib, 34, andeach of the intermediate shoes, 29, is rovided with an annular internalsegmenta rib, 35. The said ribs of the r'ont and intermediate sets offriction shoes afford bearing or the short auxiliary spring, 86,interposed between the front set of shoes, 28', and the intermediate setof shoes, 29. The segmental ribs, 84, of the front set of shoes alsoaiiord thmb e, 38. The se ental internal ribs, 35, of the intermedia eset of shoes, 29 aford seat gr' bearing for the front end ci the smallspring, 26, to react against, the said -bearin for the flange, 37, ofthe connecting small spring, 26, being nested within the front 'wedgingfaces ofthe intermediate sei. it;

lai-ge spring. 25, 'which reacts at 'its front 'of shoes, 29. The shockabsorbing action of Y vial against lherear set. of said segmental thetriple set of ex n nsible annular wedging.; edging friction shoes` 27.The connecting 'shoes is highly e cient.

5 tliiiuhle or hearing, 38, is hollow and fur- B the use of thepreferably compara 70 nish'ciljuilh au internal flange, 39, for the tivey short rear shoe with blunt angled head ofthe connecting rod tobcar'agsinst. faces, coupled with the action of the 'lhe connecting rod,40, 'is furnished with a. auxiliary spring between the intermediatethreaded cuil and not 4l, at its rear end for and -frontsets of shoes,there 1s insured a 10 eugagcuwnt with the member, 42, which perfectrelease of the parts of .the shock 75 closes the rear end of thefriction shell, 24, absorbing derice after compression. lfhe and which,if preferred, `may hecast inte alA connecting thimhle 38 and theconnecting with the friction shell. The spring, 25, t us rod, 40, serveto hold all the parts in assem-y reacts at its rear end against thefriction bled position and also to provide means for 1s shell and at itsfront end against'the rear maintaining the springs under initial com- 80set of friction shoes, 27. pression and for automatically talrino upEach of the front andv rear annular segany wear of the friction shelland s ces. mental friction shoes has two inclined or Each of the wedgefaces of each of the fricu'cdging faces, i3-44, l5- 46, and a eleartionshoes of all three sets is preferably a no ance space, 47, is leftbetween each of the spirally twistedwedge face instead of a 85 frictionshoes of each of the front and rear straight or true Plane, that is tosay, cach sets at the larger or hase end of the shoes face is radial othe friction shell at all to avoid interference and allow `Forvaripoints of thc length of the wedoe face, l ations iu details nietwith in foundry work. causing true and perfect contact liet-Ween 25These three sets of annular segmental wcdgthe wedge faces of theadiacent shoes of all 90 ing friction shoes, 27, 28 and 29, are assemfthree sets throughout the length of the bled together as indicated inFig. 6, so that wedge faces. the edging faces of the front set of shoesI claim: n n will bear against the-front wed 'ng faces l. In a frictiondraft rigflging, a longituao of said intermediate set. and wit a. slightdinally movable friction she'l T springs with- 95 s are 48, between thesaid wedgingfaces of in the shell, one nested within the' other, tileshoes when the same are in normal osifront and yrear and intermediatesets o f antion and not under compression. The s ort nular se Vmentalwedging friction shoes, the wedfring faces of the rear set'of shoesengage shoes o he front set and-intermediate set andshear against therear wedg'ng faces'of. beingeach furnished with 'internal s honl- 100the intermediate set of shoes. ders, a spring interposed between theinter- Th front follower, 22, bears against the nal shou ders of thefront and intermediate front ends of the front set of friction shoessets of shoes, and a connecting thimhle beai-, and the rear follower,23, against the rear ing against the shoulders of the front set of 4oend of the friction shell. As` the annular shoes and a rod connection'said thimble 105 segmental friction shoes of the front set inandfriction shell, substantially as specified. ternest eircumferentiallywith the annular 2. In a friction draft riggin in combiscgmentalfriction shoes of the intermediate nation, a. longitudinally mova lefriction set and as the wedge faces of the intermeshell, a spring, twosets of oppositely. ar- 4r diate set act against the wedge faces of theranged annular, semental wed in friction 11 rear set, the shoes are each-and all subjected shoes, an intermediate set of ou le faced only tocrushing strains and are con uently Wedging friction shoes. said sprinreact "n" adapted to be made of relatively e eaper ing at one endagainst the friction s ell and and more fragile material, such asordinary at the other end against one set of friction no white ironcastings. On com ression the shoes, and a further spring nestedv within11a first pressure upon theforwar end of the said first spring andreacting at one end front set of shoes transmitted through the againstthe friction shell. and at the other front follower, 22, is initiallytransmit-ted end against one set of friction shoes, and an from thefront set of shoes to the intermediauxiliary spring reacting at one endagainst ato Set of shoes tlirouqh the auxiliary spring, the front set offriction shoes and at the 12a mi. 'lhc rear set o shoes are in wedgingother end against the intermediate set of contact with iluwedging facesof the iutei'- friction shoes, substantially as specified. mediale shoesand have a wcdging action in 3. In a friction draft rigging, in combillwcylinder at all times and retard thc nation, a longitudinally movablefriction transmission of theiuovemcnt to the springs, shell, aspringhtwo sets of oppositelv ar- 12s 2V iuiil 26. until space 48 hasbeen closed and ranged annular, segmental wedging fricfront shoescnganethe intermediate shoes at 4tion shoes, an intermediate set ofdouble wcdging faces. The front set of friction wedging friction shoessaid spr'in reactshoes, each with the preferably long wedging ing at oneend against the friction s iell and a5 faces. 4:3 and 44, come intocontact with the at the other end' against one set of friction isc lltsaid first spring. and against the end o ne set offriction'shoes, andan5 auxiliary spring reacting at one end against' tho intermediate set offriction slices and against the-iront set of friction shoes at the otherond, the shoes of the front and mediate sets having internal ribs tonord hearings for said auxiliary springhvsubstanlo n l i tuxlly nsspelhed.

4. ln a friction draft riggin shoes and an intermediate dou wedging svtand the front wedgiug ynin the. wedging surfaces of fic. rear sot and olthe shoes of the intermediate auxiliary spring reacting at one end thefront set of @agiles of may be obtsi'bd for slices,- aiid 'afarther[springv nested' within 'reacting-at one end inularfrietionshell'and atthefotlfsha of the front set vbain vprovided incombi; nation, a longitudinally moya )le friction shall, a spring, twosets of oppositely ranged annular segmental wedgmg friction le faced setof annular segmental friction shoes, the positelv arrau surfaces ofthc'shoes of the -front ,y surfaces o hoes of the ntormediatc'set beinglonger the shoes of the rear wedging surfaces set, and an against attheV other end against the. intermediate set of.

ing, in combina-- tion, a longitudinally mova le friction shell v aspring and two sets of oppositely arranged annular segmental wedgmgfriction shoes and an intermediate double faced set of ansegmentalwedging friction sh'oes, the wit. i frictonlbearingurfaces o largeareaand the friction shoes of the rear set being provided with frictionsurfaces of smaller area and the intermediate double faced shoes beingprovided with friction hearing surfaces of areas less than front shoesand greater than on the rear shoes, and an auxiliary spring acting atone end against the internediateset of friction shoes and at the otherend against the front set of friction shoes, substantially as specified.

intershell, and/athin'said shel two sets of opi ed annular segmentalwedg lng friction s oes and an intermediate set of double faced uedgingfriction shoes, a .spring mechanism re-ncting at one end against thefriction shell and at the other ond against onosetjfriction shoes, andan auxiliary spring re-acting at one end' against the front set offriction other end against friction shoes.

f the the intermediate set of Bannon L. NASH JoHN F. o'coNNoR.

-.-n-d--q-w V A`l' in cents ouh, by. the Commissioner of Eatenta.

6. In a railway draft rigging, a friction 1 shoes. and at the

